MQ2 Pump Low Velocity Issue

Hey Guys ,I have a Series 6 CCM with MQ2 Valve that has issue obtaining velocity.Its equipped with a CP V1 Regulator (Flat Sides Bottom Input via a Straight Fitting) and powered by an E2 Board/Frame.

I reached 220 FPS before the relief valve started to leak bored matched with an iFit to 685.If I increased pressure ignoring the relief valve ,eventually the poppet would stick open and leak a little air down the barrel but this would go away if I reduced pressure back to where the relief valve would seal up.